The graph shows a population of rats in a forest habitat over a 10-year period.
The forest was a controlled environment, and no rats were allowed to enter or
leave the habitat.
Population
250
225
1200
200
175
150
Number of Rats (in thousands)
125
4100
100
90
76
75
50
30
45
30
25
27
0+
2
6
78
9
10
5
Year
Based on the graph, at which point is the death rate most likely greater than
the birthrate?
O A. Between years 3 and 4
B. Between years 4 and 5
C. Between years 8 and 9
D. Between years 6 and 7

Viruses are different from bacteria in that they can remain dormant on non-living surfaces they can be found just about anywhere they can infect just about every form of life

Assume that a student is given two different models of bacteria, with one model consisting of big bacteria and the other consisting of small bacteria. how can the student demonstate the theory of endosymbiosis using the models

Indicate whether the following statements about the biases in the fossil record are true or false. a) inland species are more likely to be preserved than marine species b) organisms with hard body parts are more likely to be preserved than are those composed soft tissues. c) species that existed over a larger area are more likely to be preserved than species existing over a smaller area. d) organisms that lived very long ago are more likely to be found as fossils than organisms that lived relatively recently e) the fossils of larger organisms are more likely to be found than the fossils of smaller organisms